Crowdfunding site Global Giving is attempting to raise $2 million for funds that will "exclusively support local relief and recovery efforts from this storm."

Airbnb has launched a site for people looking for a place to stay and for those who can offer shelter. Fees are waived for people who check in before September 1.

United Way of Greater Houston has set up a relief fund that people can donate to. The organization said its first priority is shelter and basic needs like food. The organization said it will also focus on long-term recovery efforts.

Comedian and actor Kevin Hart has challenged fellow celebrities to help Harvey victims. In the same spirit as the Icebucket Challenge, he pledged to donate $25,000, then tagged other celebrities and encouraged them to donate and tag others as well.